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A bisphosphonate for F-19-magnetic resonance imaging
File(s)
Author(s)
Kenny, GD
Shaw, KP
Sivachelvam, S
White, AJP
Botnar, RM
Type
Journal Article
Abstract
19F-magnetic resonance imaging (MRI) is a promising technique that may allow us to measure the concentration of exogenous fluorinated imaging probes quantitatively in vivo. Here, we describe the synthesis and characterisation of a novel geminal bisphosphonate (19F-BP) that contains chemically-equivalent fluorine atoms that show a single and narrow 19F resonance and a bisphosphonate group that may be used for labelling inorganic materials based in calcium phosphates and metal oxides. The potential of 19F-BP to provide contrast was analysed in vitro and in vivo using 19F-MRI. In vitro studies demonstrated the potential of 19F-BP as an MRI contrast agent in the millimolar concentration range with signal-to-noise ratios (SNR) comparable to previously reported fluorinated probes. The preliminary in vivo MRI study reported here allowed us to visualise the biodistribution of 19F-BP, showing uptake in the liver and in the bladder/urinary system areas. However, bone uptake was not observed. In addition, 19F-BP showed undesirable toxicity effects in mice that prevent further studies with this compound at the required concentrations for MRI contrast. This study highlights the importance of developing 19F MRI probes with the highest signal intensity achievable.
Date Issued
2016-02-26
Date Acceptance
2016-02-24
Citation
Journal of Fluorine Chemistry, 2016, 184, pp.58-64
URI
DOI
ISSN
1873-3328
Publisher
Elsevier
Start Page
58
End Page
64
Journal / Book Title
Journal of Fluorine Chemistry
Volume
184
Copyright Statement
© 2016 The Authors. This is an open access article under the CC BY license
(http://creativecommons.org/licenses/by/4.0/).
License URL
Subjects
Science & Technology
Physical Sciences
Chemistry, Inorganic & Nuclear
Chemistry, Organic
Chemistry
F-19-MRI
Bisphosphonates (BPs)
Magnetic resonance imaging (MRI)
Preclinical imaging
Fluorinated bisphosphonate
F-19 MAGNETIC-RESONANCE
BONE METASTASES
19F MRI
NANOPARTICLES
ANGIOGENESIS
INFLAMMATION
NANOBEACONS
COMPLEXES
DESIGN
BRAIN
Organic Chemistry
0302 Inorganic Chemistry
0305 Organic Chemistry
Publication Status
Published